Hayward, Calif. – December 11, 2025 — At least six people were hospitalized Thursday morning after a powerful gas explosion and fire tore through a residential neighborhood near Hayward in the San Francisco Bay Area, officials said. AP News
The blast occurred around 9:35 a.m. in the unincorporated Ashland community, located just north of Hayward along East Lewelling Boulevard, according to Alameda County Fire Department and Pacific Gas & Electric (PG&E) spokespersons. San Francisco Chronicle
Timeline of the Incident
Earlier in the morning, a third-party construction crew working on a county infrastructure project reportedly struck an underground gas line, causing gas to leak into the surrounding area. PG&E was notified at approximately 7:35 a.m. and sent crews to isolate the damaged pipeline. AP News
PG&E officials said the gas flow was successfully stopped by about 9:25 a.m., but roughly 10 minutes later, a massive explosion erupted, sparking a three-alarm fire and sending heavy smoke into the sky. San Francisco Chronicle
Emergency Response and Damage
The Alameda County Fire Department dispatched at least 75 firefighters to the scene to battle the blaze and protect nearby properties. Multiple structures were heavily damaged, including at least three buildings on two separate lots. The Guardian
Nearby homes were also evacuated as a precaution, and law enforcement assisted with crowd and traffic control. AP News
Injuries and Hospitalization
Six people were taken to local hospitals with varying injuries. Fire officials reported that three were transported immediately with serious injuries, while the other three suffered minor injuries. The current conditions of those hospitalized have not been fully disclosed. AP News
Eyewitness Accounts
Doorbell camera footage and neighbor accounts captured dramatic scenes as the explosion shook homes and sent debris flying. One resident described the moment as resembling a war-like explosion, with smoke and loud noise engulfing the neighborhood. The Guardian
Investigations Underway
PG&E and emergency agencies, including the National Transportation Safety Board (NTSB) and Cal/OSHA, are expected to investigate the exact cause and sequence of events that led to the explosion. San Francisco Chronicle
Summary
- 🚨 Explosion & Fire: Bay Area residential neighborhood
- 📍 Location: Ashland, near Hayward, California
- 🕘 Time: ~9:35 a.m., Dec. 11, 2025
- 👥 Injuries: 6 hospitalized
- 🧯 Responders: ~75 firefighters
- 🏠 Damage: Multiple buildings and homes damaged
- 📋 Cause Under Investigation: Gas line struck by construction
